and stem rot, wilting and damping-off of seedlings. It has a wide range of hosts, around 500 botanical species, including dicotyledons and…
and are smaller. Nymph development time is dependent on temperature, but host plant quality also has an influence. After completion of nymph stage, it
Downey mildew Choose resistant cultivars Use a wide crop rotation with non-host crops Prevent a humid microclimate. Achieve this by lowering crop…
possibly Pakistan. The tobacco whitefly ( Bemisia tabaci ) has an enormous host range and has affected an extremely wide range of crops throughout the…
spread the infestation to other rose plants and sometimes also to secondary hosts. Colonies are often present on rose bushes throughout autumn until…
regions Use clean seed Use a minimum crop rotation of four years with non-host crops Bury or remove crop debris Prevent plant diseases by optimizing…
spider mites Spider mite damage Larvae, nymphs and adults cause damage to the host plant by feeding on plant sap. They mainly occur on the underside…
temperate regions. The broad mite (Polyphagotarsonemus latus) has a wide range of host plants, especially peppers, but also aubergine, tomato and…
Zoospores are formed from the overwintering structures which infect the host. Zoospores are spores with flagellae, which enable them to move through…
almost black. Damage symptoms Larvae, nymphs and adults cause damage to the host plant by feeding on plant sap. They mainly occur on the underside of…
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